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Return Trip

Upside-down conveyors have higher priority than normal conveyors. I solved this one with a clock, a piston moving upside-down conveyors back and forth, and a signal block preventing unwanted blocks from spawning when another is in the critical zone.

So, if anyone is struggling with this, i got 2 tips.
1. Conveyors do NOT attach to ceilings
2. Remember Minecraft's old School T-Flip Flops.

OK, I managed to do it in only 7 blocks. Screenshot: https://steamproxy.com/sharedfiles/filedetails/?id=3169542374
This uses a small "cart" that goes forward and backward, carrying a block on it and a few more blocks for moving the cart and blocks.

Finished the puzzle with some efforts. Then looked at the gif. Did not even knew that was possible since I did it in a totally different and logical manner.

306/110/75
This was a fantastic puzzle. The eureka moment of the puzzle and the actual execution of the idea was fantastic for such a simple looking concept. Loved it!

So when I made my 27fp solution back in 2015 I didn't know about the shimmy thing , and inverted conveyors didn't exist. I used the 'feature' where a pusher pushes itself to override a return conveyor, which was later patched out. Revisiting the puzzle I squeezed out a 26fp without inverted conveyors and 24fp with inverted conveyors. https://imgur.com/a/FyZKe4e

Here's my 249 cycle solution. https://steamproxy.com/sharedfiles/filedetails/?id=2373867244
My output block never waits for anything with my timing, and the next input block moves into the chamber as the last comes out perfectly. I'm baffled how some have faster times than this. There must be some way to increase how fast the output block reaches the receiver, but I can't think of how without a welder and rotor assembly.

hyper good, my score 6 blocks , yes

a wonderful little puzzle!
used a conveyor belt on the ground with 28 belts and 7 blocks, and 2 sensors to control which conveyor belt was under the gap

good grief what have I *done*

314/124/159

many conveyors and falling, much gravity abuse, I really should have thought this through better than I did because it turned out rate-sensitive and that's really not very good at all. On the plus side, I made pi. (314/.../159)